Short answer. No. Section 5 of Rule 10 says that when issues not raised in the pleadings are tried with the parties' express or implied consent, they are treated in all respects as if they had been raised in the pleadings — no formal amendment is necessary to make the pleadings conform to the evidence.

What the law says

When issues not raised by the pleadings are tried with the express or implied consent of the parties, they shall be treated in all respects as if they had been raised in the pleadings. No amendment of such pleadings deemed amended is necessary to cause them to conform to the evidence.

Rule 10, Section 5 — No amendment [ necessary] to conform to or authorize presentation of evidence. Read the full provision →

Issues tried by consent are treated as pleaded

Section 5 addresses a common trial situation: evidence gets introduced, and the case ends up being litigated on an issue that technically was never alleged in the original pleadings, but neither side objected. The section resolves this cleanly — where such an issue is tried with the express or implied consent of the parties, they shall be treated in all respects as if they had been raised in the pleadings. Requiring a formal amendment before the court could even consider such evidence would elevate form over substance in exactly the kind of situation Section 5 is meant to resolve, since both sides had already litigated the issue as though it were properly before the court.

No amendment is required

Building directly on that, Section 5 states that no amendment of such pleadings deemed amended is necessary to cause them to conform to the evidence. This departs from a stricter approach that might otherwise require a formal amendment before the court could consider an issue that went beyond the original pleadings — here, consent during trial itself is enough to fold that issue into the case, without any further paperwork being required. In practice, this means the trial court can render judgment on the unpleaded issue exactly as if it had been alleged from the start, without either party needing to file, or the court needing to rule on, a motion to amend.

Why consent (express or implied) is the key trigger

The provision hinges entirely on consent — either express (both sides affirmatively agreeing the issue is being tried) or implied (neither side objecting as evidence on the new issue comes in). Consent is what justifies treating the issue as though it had been in the pleadings all along; without it, introducing evidence outside the pleaded issues would ordinarily draw an objection, and the outcome under this section would be different. A timely objection at trial, by contrast, puts the issue back on the pleading party to either withdraw the evidence or seek leave to amend under the general amendment provisions, so consent is doing real work here rather than being a mere formality.

Related provisions

Note. Statute text quoted on this page is reproduced from the official enactment and is linked to the full provision. The explanation around it is general legal information from Vivas & Nobles Law Office, not legal advice. Whether it applies to your situation depends on facts only a lawyer reviewing them can assess.